include/linux/buffer_head.h: fix boolreturn.cocci warnings

./include/linux/buffer_head.h:412:64-65:WARNING:return of 0/1 in
function 'has_bh_in_lru' with return type bool

Return statements in functions returning bool should use true/false
instead of 1/0.

Generated by: scripts/coccinelle/misc/boolreturn.cocci

Link: https://lkml.kernel.org/r/20210824055828.58783-1-deng.changcheng@zte.com.cnSigned-off-by: Jing Yangyang <jing.yangyang@zte.com.cn>
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

include/linux/buffer_head.h

@@ -409,7 +409,7 @@ static inline void invalidate_inode_buffers(struct inode *inode) {}
 static inline int remove_inode_buffers(struct inode *inode) { return 1; }
 static inline int sync_mapping_buffers(struct address_space *mapping) { return 0; }
 static inline void invalidate_bh_lrus_cpu(int cpu) {}
-static inline bool has_bh_in_lru(int cpu, void *dummy) { return 0; }
+static inline bool has_bh_in_lru(int cpu, void *dummy) { return false; }
 #define buffer_heads_over_limit 0
 
 #endif /* CONFIG_BLOCK */